Geometry - Ch. 3: Proofs (12 of 17) Geometry Proof #4: Angles

In this video I will proof the geometry proof #4: m(angle)1+m(angle)2=180 and m(angle)1=58 then m(angle)2=122.

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[vervaeteddy]

Hallo Mr Van Biezen, i am a 69 year old retired man. The last 6 years i watched (almost) all your videos as a hobby. I try to understand now what i didn't understand when i was eighteen. (Almost) Every day i watch for three to four hours. My sincerest respect for your work, you are a real ACE teacher. Greetings from Antwerp Belgium. I suspect (though i can't find confirmation by Googling) that you are from dutch or flemisch descent, so: " Hartelijk bedankt en doe zo verder !!! "

[REVNUMANEWBERN]

IF I had a teacher like this in HS I would of turned out to be a engineer